Line of scrimmage

One of two vertical planes parallel to the goal line when the ball is to be put in play by scrimmage. For each team in American football, the line of scrimmage is through the point of the ball closest to their end line. The two lines of scrimmage are called offensive line of scrimmage and defensive line of scrimmage. Often shortened to “line”. In Canadian football, the line of scrimmage of the defensive team is one yard their side of the ball.